Pulverizer.



F. B. CORNWALL.

PULVERIZER.

APPLlCAT[ON FILED nov. 30, 1910.

LREDERECK E. CBNWALL, OIE SEC. LOUIS, MISSOUBI, ASSGNOZ; T0 WILLIAMS PATENT CRSHER AND PULVERIZER COMPNY, DE SE. LOUIS, MISSOURI, A. CORPORATION OF MISSOUB.

Specification of Letters Patent.

Patented J une 29, 1915.

Figure 1 is a vertical section taken ap proximately through the -center of a pulverizer of my improved construction. Fig.

2 is an enlarged vertical section taken on the line 22 ofFi 1. Fig. 3 is a perspective view cf an ad%acent pair ofthe disks ntilized in my improved pulverizer. Fig. ,4 is a perspective view of a rotary adjustable sleeve made use of in my improved pulverizer.

This invention relates to a new and nseful improvement in pulverizers of that type commercially "known as the Williams Mille, characterized by pivoted revolving hammers which act upon the material as it enterS the machine et the hopper or feed encl thereof, crnshing said matcrial as it reste npon the bottom of the hopper, or.

breaker plate, as it is sometimes called, the material being further clisintegrated or crushed by the hammers acting thereon as the material is carried over the cage or grinding surface. The crushed material -fallsthrongh the, openings in the cage or grinding surface into a suitable receptacle locatcd beneath the machine.

The hammers or beaters Whicl 1 revdlve about tlie shaft, while macle of a material whose resistance to wear is its essential quality, will, in time, 'wear away at-their striking ends, and the farther these striking ends arc removed from thebreaker plate and grmding surface, the less becomes the capacity of the machine.

' It is the purpose of my present invention to provide. simple means whcreby these re voiving hammers or beaters may be adjusted. ontwardly to take up the wear (or in-' wardly, if occasion requires, as when a new cage 1S 1ntrcdnced to replace a worn one), sazci means consisting of a series of dxsks which.pass rods upon which the hammers or beatersare pivotally mounted. The slots in one series of disks are oppositely disposed relative to the sl0ts in the opposite set of disks, and thus, when the adjustable set of disks is rotated, the rods which pass throngh the slots are moved radially relative to the shaft, and tlie hammers are adjsfed inwardl y or.otwztrdly, depending npon the direction of rotation 01: the adjustable disks.

To the above purposes, my invention consists in certain novel features of construction and arrangement of parts hereinaiter more fnlly described and claimed.

Referring by nnmerals to the accomanying drawings, 1 indicates the casing of the pulverizer, 2 the breaker plate, 3 the grinding surface or cage, and 4.the cover of the machine which may be lmng or monnted npon tl1e casing, as desired.

'5 designates the shaft of the pnlverizer, npon one end of which is fixcd a driving member 6 preferably in the form of a pal ley. Loosely monnted npon tl1e sliaft 5 is a sleeve 7, which latter is arranged for rotation in snitable bearings8 formed on the. sides of the casing, and one end of said sleeve is provided with a head 9 ha:ving a clntch face 10.

Arranged to slide npon a key Il seated in the sha'ft 5 adjacent the end of-tl1c sleeve providedwith a clntch face 10, is a coller 12 provided with a clntch face 13, wllicli op poses said clutch face 10. This collar 11. is normally held in its forward or sct position With the clntch face 13 in engagement with the clntch face 10 2) menus et. a wedge key 14: which passes tlirongh snitable aperture forme i through tlre shait 5, and said Wedge key bearing against tire enter face of the collar 12.

Rigidly fixed in any suitalnie manner'upon the sleeve 7 is a series of dislzs 15%, and formed therethrongn, preierably at equai distances apart, is a, series of tangentially disposcd slots 16. riterpcsed between the disks 15 are adjustable disks 17, and seated in the huos thereof are pins 18 which pass through segmental siots 19 formed in tire sleeve 7,

siots 20, whioh are oppositeiy dispsed with relation to the slots 16. Passing through the various sets Of slots 16 and 20 are rods or boits 21, and pivotally mounted thereon between the disks 15 and 17 are hammers or beaters 21.

T he operatiori of the puiverizer constructed*as hereinshown and described Will be readiiy understood by persOns famiiiar J W1th the art, and when the outor ends 01 the hammers or hoaters have worn 'away and'it is desired to move said hannnors or beaters -:a1tward, the wedge key 11 is'withdrmvn fro1n tl1c sha1t 5, thns permitting the coiiar 12 to ho moved upon the key 11, thus disongaging tho clntch face 13 from the oiutch face 10. Tho had 9 on the sleevo 7 is now ongagod With a suitab]e tooi, and said sieevo is )artiaily rotatod npon the shar't 5, which action partialiy rotates the disks 15 Carried by said s]oovo, and oonsequexitiy changes thn positions of the siots 16 relative tho siuts 20 in the disks 17. A snitable tooi, such as a sockot wronch, may be used on tire coilar 12 to hoid if; in the shait 5 whilo' the head 5) and sieeve may be heid by tlie sookot wronch whiie the shaft is rotated, but; nsuaiiy, on acoount of the boit connection, tho sha1t re- 1nains stationary while the sJoero is rotated Tlms tho point of intersection b( t\voon tho sets of siots and whichare 0((tH[ ivd by tho boits or rods "21 are shifed radial.!y and mlthammers cioser to the grinding surface 01" cage of the puiverizer. The collar 12 is 110W positioned so that the ciutoh face 13 rengag's the.ciutch face10,ztnd the 'key 14 is fion" seated in the sh'a'ft 5 between the coliar 12 to look the various parts in their adjnstod positions. Thus it will be seen how I have oonstructed a simpie,inexpensivo pul in a rotary hannner 1nill a shaft, disks a1 ranged un Un! shaft. i1annners outwardiy adw taldy monntod. in the disks, ,means. for ohoating outward adjnstment of said hammors and Iocking nmans arranged directly on said sh'a it: and ca i3p@ratir g w ith said adjnstting nmans .\'lmreby the latter may .be rigidiy hnid in diderent adjsted positions.

signature in the ])resence of two witnesseys, ihi 28th day of November 1910. C

FREDERICK R. CORNWALL.

W itnosses:

M. 1. SMITH, BLANCHE L. CROWLEY. 

